UA2634 San FranciscoSFO · 14:07 BostonBOS · 22:59
UA2634 by United Airlines flies from San Francisco (SFO) to Boston (BOS) for the Mon, Sep 14 departure.
estimated arrival at BOS · local time · ~28 min from now
position updated 4m ago · checking again in 90s
Live position · flown path, last 4h 30m
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SFO and BOS are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other San Francisco to Boston flights today
same route · United AirlinesIf UA2634 is cancelled, these are the other United Airlines nonstop flights from San Francisco to Boston on the same day, with scheduled departure times in SFO local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA2634 actually runs
Pro Flight Search has tracked every published board update for UA2634 across the SFO and BOS boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: left heavily delayed (~117 min) but landed heavily delayed (~80 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how UA2634 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as SFO and BOS published them.
Planning around UA2634? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA2634 San Francisco to Boston on-time performance, measured from the SFO and BOS airport boards.
https://proflightsearch.com/flight/UA2634
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